生物气溶胶
室内生物气溶胶
污染物
污水污泥
环境科学
废物管理
生物滤池
环境化学
堆肥
化学
污水
环境工程
气溶胶
有机化学
工程类
作者
Hongyu Tian,Jianwei Liu,Yuxiu Zhang,Yue Peng
标识
DOI:10.1016/j.wasman.2023.03.021
摘要
In order to remove multiple pollutants in the sewage sludge (SS) composting facility, a novel integrated industrial-scale biological reactor based on biological trickling filtration and fungal biological filtration (BTF-FBF) was developed. This study examined bioaerosol emission, odour removal, pollutant transformation mechanism, and project investment. At an inlet flow rate of 7200 m3/h, the average removal efficiencies of hydrogen sulfide (H2S), ammonia (NH3), and volatile organic compounds (VOCs) during the steady stage were 97.2 %, 98.9 %, and 92.2 %. The BTF-FBF separates microbial phases (bacteria and fungi) of different modules. BTF removed most hydrophilic compounds, while FBF removed hydrophobic ones. Moreover, the reactor could effectively remove pathogens or opportunistic pathogens bioaerosols, such as Escherichia coli (61.9%), Salmonella sp. (85%), and Aspergillus fumigatus (82.1%). The pollutant transformation mechanism of BTF-FBF was proposed. BTF-FBF annualized costs were 324,783 CNY/year at 15 years. In conclusion, BTF-FBF provides new insights into composting facility bioaerosol, odour, and pathogen emission control.
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